[jbossseam-issues] [JBoss JIRA] Updated: (JBSEAM-665) Seam throws NPE when a component with a @Name is not specified in components.xml

[Mike Quilleash (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBSEAM-665?page=all ]

Mike Quilleash updated JBSEAM-665:
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    Summary: Seam throws NPE when a component with a @Name is not specified in components.xml  (was: Seam throws NPE when a component with a @Name is specified in components.xml)

> Seam throws NPE when a component with a @Name is not specified in components.xml
> --------------------------------------------------------------------------------
>
>                 Key: JBSEAM-665
>                 URL: http://jira.jboss.com/jira/browse/JBSEAM-665
>             Project: JBoss Seam
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.1.0.GA
>         Environment: Win XP Pro
> Java 1.5.0
> Tomcat 6.0.7
>            Reporter: Mike Quilleash
>
> Example line in components.xml
>   <component class="com.xxx.ElementDetail"/>
> Class ElementDetail does not have a @Name (which it should) but class Initialization method installComponentFromXmlElement() throws an NPE on this line.
>   name = clazz.getAnnotation(Name.class).value();
> Would be nice to check for the null condition and throw a more descriptive exception of the problem. e.g
> Name nameAnnotation = clazz.getAnnotation( Name.class );
> if ( nameAnnotation == null )
>     throw new IllegalArgumentException( "Component class " + class.getName() + " requires a @Name annotation or it's components.xml reference requires a name attribute" );
> name = nameAnnotation.value();

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